Splain this: 6th ed Hero Systems GMing for RP events

I was looking around Roll20 recently and found out that Roll20 has only the 6th ed stuff for PnP material and was wondering if anyone has ever used this since i have no clue how it works.

Now the reason why I'm currently thinking about making a SG and thought to myself wouldn't it be a cool idea to use Roll20 instead of using my dice for rolls mostly cause to be honest I'm horrible at math(sadly 10 of special ed will do that to ya) anyways some kind of explanation would be great.

In terms of the mechanics of combat and Skill use during a game, there's very little difference between the editions of the game. The dice rolls and target values are all the same. Same damage dice, same roll modifiers. The most notable difference in play is that ranges and scale are measured in meters rather than hexes or "inches," making the system no longer tied to RPG's wargaming map roots. If you just multiply the old measures by two they fit fine. Also, the way Area of Affect is bought and calculated is different, more incremental and modular, and not dependent on the Base Points in the power to determine the final area, i.e. it's a fixed area based on the size of the Advantage.

The biggest differences in 6E versus earlier editions are in character creation. Figured Characteristics are a thing of the past; almost all the old Characteristics are still there, but they're bought up independently of each other, and their Character Point cost is often changed. Comeliness is gone, but replaced with a Talent, "Striking Appearance," with actual game effect. OCV and ECV aren't tied to DEX or EGO, but broken out into their own separate Characteristics: OCV, DCV, OMCV (Offensive Mental Combat Value) and DMCV. A few other Powers, such as Growth and Deflection/Reflection, are changed mechanically and/or in CP cost. Several things have been renamed, e.g. Energy Blast is now just Blast, Disadvantages are now called Complications.

Bottom line: if you want to build characters under the new system, there are a number of things you'll need to get used to, but 6E is far more similar to its predecessor than it is different. If you just want to run pregen characters using the Roll20 resources, there's very little to adapt to.